Two chords were recorded by John Broughton, using video OSD technique.

One clearly observed miss was recorded for this event.

View the updated prediction.

Observers:
  1(M) J Bradshaw,Sanford Valley, Qld, AU
  2    J Broughton,Eagleby, QLD, AU
  3    J Broughton,Reedy Creek, QLD, AU
  4(P) Prediction, 6 Aug

        

Discussion:

The ellipse above is plotted at the best fit axis ratio as determined by Occult. This give an axis ratio of 1.22 compared to the lightcurve estimate of 1.13. The resultant area is about 88% of the predicted circle of 72 km. With 2 chords we can be confident of the path of Phaeo and that it was south of the predicted line.

The figure below shows the Tangra light curve of the occultation from Eagleby.

The figure below shows the Tangra light curve of the occultation from Reedy Creek.

Observational Data:

Observation details for MP ( 322 ) Phaeo
By Star              UCAC2 39470326
On 2012-10-04  at 16:41:59.0

_______________________________

Observer   Jonathan Bradshaw
Location   Samford Valley, Qld, Australia
Longitude  +152:50
Latitude   -27:22
Altitude   80 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   36 cm
Seeing     Steady Clear
Camera Type  G-Star         PAL/CCIR
Camera Delay 0.05
Timing     GPS - time inserted Video with frame analysis

Missed

Comments:   Report prepopulated by IOTA Reporting Add-in for OW ver.1.6

_______________________________

Observer   John Broughton
Location   Eagleby, QLD, AU
Longitude  +153:12
Latitude   -27:43
Altitude   8 m
Datum      WGS84
Telescope Newtonian
Aperture   32 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.09
Timing     GPS - other linking Video with frame analysis
Disappearance  16:41:48.30
Reappearance   16:41:51.82
Comments:

_______________________________

Observer   John Broughton
Location   Reedy Creek, QLD, AU
Longitude  +153:23
Latitude   -28:06
Altitude   66 m
Datum      WGS84
Telescope SCT including Cass and Mak
Aperture   25 cm
Seeing     Steady Clear
Camera Type  WAT120N        PAL/CCIR
Camera Delay 0.09
Timing     GPS - time inserted Video with frame analysis
Disappearance  16:41:50.58
Reappearance   16:41:54.58
Comments: